Convert matrix in single column/row vector
1,522 次查看(过去 30 天)
显示 更早的评论
Hi, I have to convert a matrix in one column/row vector composed of all the rows of the original matrix. How can I do this? Thanks. For example, to convert [1 2; 3 4] in to [1 2 3 4].
0 个评论
采纳的回答
Jos (10584)
2017-11-5
Take a look at reshape and transpose
A = [1 2 ; 3 4]
reshape(A,1,[])
transpose(A)
A.'
A(:)
reshape(A.',1,[])
0 个评论
更多回答(4 个)
M Shujah Islam Sameem
2019-1-5
%%%% Converting Matix to vector
A = [1 2 3; 4 5 6; 7 8 9] % Example matrix
reshape(A,[],1) % convert matrix to column vector
reshape(A,1,[]) % convert matrix to row vector
2 个评论
Samaa Yasser
2021-4-7
@M Shujah Islam Sameem excuse me ,, i want to convert image matrix size 256x256 to row vector with length same size can you please help me ?
Rik
2021-4-7
'the same size', do you mean a vector length 256 or 65536? In the latter case, read the answer.
Muhammad Usman
2019-12-23
A = [1 2; 3 4];
B = A(:) % convert the matrix into a column vector
C = A(:)' % convert the matrix into a row matrix
2 个评论
Çağatay Murat Yılmaz
2020-10-4
You can convert the following matrix to a vector using the following code.
input matrix:
0 1 0 2 3
4 5 6 7 8
9 10 11 12 13
output vector:
0 1 0 2 3 4 5 6 7 8 9 10 11 12 13
code:
vector=[];
for i=1:size(matrix,1)
vector=[vector matrix(i,:)];
end
1 个评论
Rik
2020-10-4
Dynamically growing an array is very inefficient. You should consider transposing the array and using reshape.
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Data Type Conversion 的更多信息
产品
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!